# Newton-Gauss line

Let $AECF$ be a complete quadrilateral, and $AC$, $BD$, $EF$ his diagonals. Let $P$ be the middle of $AC$, $Q$ the middle of $BD$, and $R$ the middle of $EF$. Then $P,Q,R$ are on a same line, called the Newton-Gauss line.

Title Newton-Gauss line NewtonGaussLine 2013-03-22 14:05:47 2013-03-22 14:05:47 vmoraru (1243) vmoraru (1243) 4 vmoraru (1243) Definition msc 51-00